# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

########################################################################
# OPENAPI-URI: /api/issue/closers
########################################################################
# get:
#   responses:
#     '200':
#       content:
#         application/json:
#           schema:
#             $ref: '#/components/schemas/CommitterList'
#       description: 200 Response
#     default:
#       content:
#         application/json:
#           schema:
#             $ref: '#/components/schemas/Error'
#       description: unexpected error
#   security:
#   - cookieAuth: []
#   summary: Shows the top N of issue closers
# post:
#   requestBody:
#     content:
#       application/json:
#         schema:
#           $ref: '#/components/schemas/defaultWidgetArgs'
#   responses:
#     '200':
#       content:
#         application/json:
#           schema:
#             $ref: '#/components/schemas/CommitterList'
#       description: 200 Response
#     default:
#       content:
#         application/json:
#           schema:
#             $ref: '#/components/schemas/Error'
#       description: unexpected error
#   security:
#   - cookieAuth: []
#   summary: Shows the top N of issue closers
#
########################################################################


"""
This is the TopN issue closers list renderer for Kibble
"""

import json
import time
import hashlib


def run(API, environ, indata, session):

    # We need to be logged in for this!
    if not session.user:
        raise API.exception(403, "You must be logged in to use this API endpoint! %s")

    now = time.time()

    # First, fetch the view if we have such a thing enabled
    viewList = []
    if indata.get("view"):
        viewList = session.getView(indata.get("view"))
    if indata.get("subfilter"):
        viewList = session.subFilter(indata.get("subfilter"), view=viewList)

    dateTo = indata.get("to", int(time.time()))
    dateFrom = indata.get(
        "from", dateTo - (86400 * 30 * 6)
    )  # Default to a 6 month span

    interval = indata.get("interval", "month")
    xtitle = None

    ####################################################################
    ####################################################################
    dOrg = session.user["defaultOrganisation"] or "apache"
    query = {
        "query": {
            "bool": {
                "must": [
                    {"range": {"closed": {"from": dateFrom, "to": dateTo}}},
                    {"term": {"organisation": dOrg}},
                ]
            }
        }
    }
    # Source-specific or view-specific??
    if indata.get("source"):
        query["query"]["bool"]["must"].append(
            {"term": {"sourceID": indata.get("source")}}
        )
    elif viewList:
        query["query"]["bool"]["must"].append({"terms": {"sourceID": viewList}})
    if indata.get("email"):
        query["query"]["bool"]["must"].append(
            {"term": {"issueCreator": indata.get("email")}}
        )
        xTitle = "People closing %s's issues" % indata.get("email")

    # Get top 25 committers this period
    query["aggs"] = {
        "committers": {"terms": {"field": "issueCloser", "size": 25}, "aggs": {}}
    }
    res = session.DB.ES.search(
        index=session.DB.dbname, doc_type="issue", size=0, body=query
    )

    people = {}
    for bucket in res["aggregations"]["committers"]["buckets"]:
        email = bucket["key"]
        count = bucket["doc_count"]
        sha = hashlib.sha1(("%s%s" % (dOrg, email)).encode("utf-8")).hexdigest()
        if session.DB.ES.exists(index=session.DB.dbname, doc_type="person", id=sha):
            pres = session.DB.ES.get(index=session.DB.dbname, doc_type="person", id=sha)
            person = pres["_source"]
            person["name"] = person.get("name", "unknown")
            people[email] = person
            people[email]["gravatar"] = hashlib.md5(
                person.get("email", "unknown").encode("utf-8")
            ).hexdigest()
            people[email]["count"] = count

    topN = []
    for email, person in people.items():
        topN.append(person)
    topN = sorted(topN, key=lambda x: x["count"], reverse=True)
    JSON_OUT = {
        "topN": {"denoter": "issues closed", "items": topN},
        "okay": True,
        "responseTime": time.time() - now,
        "widgetType": {"chartType": "bar", "title": xtitle},
    }
    yield json.dumps(JSON_OUT)
